Archives: Downloads

ABSTRACT This report presents the development of light vehicle brake pad test rig for testing and measuring the materials frictional characteristics such as brake pad wear rate, disc temperature, and average disc stopping time. Product validation and quality control is very necessary in the developmental process of any product. The brake pads were tested at various input variables such as speed and pressure to determine the effects of contact pressure ...

ABSTRACT In this study of Performance analysis and enhancement of Peugeot 307 timing belt, the effect of the engine speed, run time on the timing belt geometry were investigated and also a model were built to test how an engine should stop working when the timing belt cuts using sensor. The analysis, forces acting on the belt were carried out numerically. The belt failure monitoring model was achieved by the ...

ABSTRACT Lymphatic   filariasis   caused   by   mosquito   borne   filarial   nematode,   Wuchereria brancrofti, is a debilitating Neglected Tropical Disease of major public health importance. This study was carried out to determine the status of Filariasis among five (5) selected communities include Rugan gandu/Tudun Fulani, Sabon garin mangu/ matachibu, Sabon garin Madara, Tashan badukke and Dogon fili in Kotongora Local Government Area, Niger State. In this study, standard parasitological techniques, rapid assessment method ...

ABSTRACT There are many challenges facing rural areas in Nigeria which serves as obstacles to the livelihood and wellbeing of the rural dwellers. One of the common challenges is informal Gold mining. Gidan Mai Wayo rural settlement experiences environmental degradation due to the activities of Artisanal Gold miners. The community depends on surface and ground water located around the Gold mining sites, which may have negative effect on their health. ...

ABSTRACT The aim of this research is to investigate the effects of thermal treatment on the physical and mechanical properties of a selected indigenous Nigerian wood. In order to achieve the research aim,  Iroko (MiliciaExcels) wood samples obtained from Ala forest in Akure, Ondo state, Nigeria were subjected to heat treatment at varying temperatures (80 oC, 100 oC, 120 oC, 140 oC and 160 oC) with constant treatment duration of ...

ABSTRACT The problem of Magnetohydrodynamics rotational stagnation point flow over a shrinking and stretching sheet with heat generation and absorption was considered . The Partial differential equations were transformed using similarity variables to ordinary nonlinear coupled differential equations. The analytical solutions were presented using the Adomian decomposition method. The results presented were validated with the literature and a good agreement was observed.   The effects of various dimensionless parameters like Rotational ...

ABSTRACT The  management  of  plastic  waste  (whose  generation  is  on  the  increase)  poses  a  great challenge to environmentalists owning to its non-biodegradability. The research project aims at using waste plastic materials as binding groundmass in place of cement thereby producing pavement blocks that are more durable and more failure resistant than the existing cement derived pavement blocks(whose water absorption rate  as well as moderate resistance to acidic condition is a ...

ABSTRACT This  study  investigates  the  economic  application  of  scheffe’s  model  in  compressive strength optimisation of rice husk ash-cement concrete. Physical properties of the aggregates such as specific gravity, bulk density and sieve analysis were determined. Specific gravities of fine and coarse aggregates were 2.64 and 2.66 respectively. The bulk densities were 1745kg/m3 and 1660kg/m3 respectively. From the sieve analysis test, the sand belonged to zone 2 and well graded with ...

ABSTRACT The heat treatment of wood is an environmental friendly method for wood preservation. This process improves wood resistance to decay and its dimensional stability. In this study, the physical properties of White Afara wood( Terminalia superb) such as density, moisture content and shrinkage were investigated as well as mechanical property such as compression strength. Woods specimen that had been conditioned at 65%  relative humility and 20 ± 2ºC temperature ...

ABSTRACT The study of the biology of three fish species; Tilapia zillii, Clarias gariepinus and Synodontis clarias with reference to their diet composition is an important aspect in fish biology. This research was aimed at evaluating the Feeding Ecology and nutritional status of selected fish species from Tungan Kawo Reservoir, Kontagora, from July 2018 February 2019. The Physicochemical parameters, stomach content analysis, proximate composition and amino acid profile were determined ...

ABSTRACT The magnitude of deterioration of maize (Zea Mays) in storage and storage losses recorded globally is worrisome especially in the developing countries. However, with the evolution of metallic silos, there has been tremendous reduction in the storage losses. In the storage of maize (Zea Mays L.) in metallic silos especially for long period, certain degenerating changes do occur, due to the interaction between the stored maize and the immediate ...

ABSTRACT The effect of pre-qualification criteria on performance of contractors cannot be overemphasized. Problems faced in Project management can be attributed on poor pre- qualification criteria adopted by the public and private sectors as necessitated this study. The study aimed at evaluating the effect of pre-qualification criteria on performance of contractors in Kaduna State.  The study sampled 162 supervisors and management staff of Kaduna State Ministry of Land, Works and ...

ABSTRACT Research has shown high transmission of hepatitis B virus (HBV) among inmates in correctional facilities in the developed world, but the data base for the developing countries is still lacking information on same. The aim of this study was to determine the prevalence of Hepatitis B virus infection  in  inmates  of  selected  correctional  facilities  in  Niger  state.  Blood  samples  were collected from inmates in three correctional facilities namely Bida, ...

ABSTRACT The process for the development of a reliable and ecofriendly metallic nanoparticle (NP) is an important step in biomedical application of nano technology. Zinc oxide nanoparticle (ZnONps) and silver nanoparticle (AgNps) is gaining attention in nanobiomedical due to their biocompatibility and antimicrobial activities. Therefore this study is aimed at evaluating the ecological synthesis of zinc oxide, silver doped silver and zinc oxide nanoparticle plus their antimicrobial properties. The green ...

ABSTRACT A geoelectric survey was carried out in Badeggi under Katcha Local Government area of  Niger  State  with  the aim  of  evaluating  the  aquifer  protective  capacity and  soil corrosivity of the overburden units in the study area using vertical electrical sounding method.   G41 Resistivity meter was employed to obtain forty VES points within ten profiles, with the interval of 50 m between the profiles.The Schlumberger electrode array was employed to ...

ABSTRACT Activity concentrations of radionuclides in rocks and minerals are of vital importance in geosciences and health physics especially that primordial radionuclides constitute the main source  of  radiation  exposure  risks  externally in  soil,  rocks  and  minerals.  In  this  study, samples of four (4) economic minerals, namely dolomite, feldspar, limestone and calcite, were collected from quarry sites in Igarra area, Edo State, Nigeria and analysed using gamma ray spectrometric technique. From ...

ABSTRACT The root-knot nematode (Meloidogyne incognita) is one of the plant parasitic nematodes that causes serious economic damage on tomato plant. Due to loss of effectiveness and environmental hazard of chemical nematicide, the search for new agents of control has become paramount. Therefore, nematicidal efficacy of soil fungal isolates on second stage juvenile of Meloidogyne incognita was carried out. Soil samples for the isolation of fungi and nematode were collected ...

ABSTRACT There is a standard of 99.999% (five ‘nines’) availability for telecommunication hardware and software. This is to guarantee the high level of service required by the Mobile Network Operator  (MNO) for service delivery. MNOs in Nigeria and most sub-Saharan Africa countries are, however, not being able to meet up with the expected base station availability mainly due to high restoration time after the outage. In this thesis, the historical ...

ABSTRACT Therapeutic effects of the methanolic root extract and a combination of leaf and root extracts of Morinda lucida were evaluated for antiplasmodial activities. The phytochemical  screening  of  the  methanolic  root  extract  showed  the  presence  of saponins, flavonoids, alkaloids, phenolic nucleus and phlobotannins. The LD50 of the crude methanolic root extract was calculated to be 3807.89mg/kg and percentage suppression of parasitaemia was 56.30, 59.84, 67.72 and 81.80% for doses of ...

ABSTRACT The discharge of dyeing wastewater containing high concentration of contaminants from the local dyeing industry has caused a serious environmental concern. The present study reports the synthesis of graphitic carbon nitride and itsutilization in degradation of dyeing effluent pollutants under solar irradiation. The synthesized g-C3N4 was modified using the aqueous leaves extract of AzadiratchaIndica (Neem plant): a clean,   non-hazardous   and   environmentally   friendly   procedure   (green   modification   route).   The morphology,  elemental ...